Hydraulic main.



H. L. DOHERTY.

HYDRAULIC MAIN.

APPLICATION FILED APR. 13, 1911.

1,048,409. Patented Nov. 5, 1912.

9 g" 9 I l N 7 wane 00% is a specification.

claimed the sealing device shown.

'sists of a'two-piece hydraulic main, made up .such trough with its edgesimmersed in the said conduit having HENRY L. DOHERTY, 023 NEW YQRK, Iii. Y.

HYDRAULIC MAIN.

LOiSAOQ. Original application filed December 27,

Specification of Letters Patent. Patented Nov. 5, 191?,

1911 Serial Iva. 620,858. to aZlwhomit may concern: curve and joined together endwise, prefer- Be it known that I, HENRr L. DOHERTY, ably by a riveted joint, the whole forming a citizen of the United States, and a resident in eff of New York city, 'in'the county of New 4, cut The trough 2 York and State of New York, have invented similar sheets, unperforated. As shown, the certain new and useful Improvements in trough 2 is, preferably, bent toa consider- Hydraulic Mains, of which the following ably larger radius than 1 and has only about 120 degrees of curvature while the gas-conduit 1 may have, say, 270 degrees of curvature. It is, of course, I am not limited to the use of the curvatures specified. Spiders, 5, having their upper frames curved to correspond with the curvature of gas conduit 1, maintain the part 1 in a fixed position in the trough 2. shown, these spiders are preferably bolted to the gas-conduit 1 by bolts, '6, before the latter is inverted in the trough 2, although they may, if fastened to the trough.

In assembling the apparatus, the trough 2 is first placed in position, resting in a plurality of cradles of which two, 29, 29'. are shown, and which cradles are, in turn, sup ported by the walls of the gas benches thenr selves.

30 represents the partial outline of the top of a bench.

-It is not necessary, in my invention, to have the hydraulic main (2) set on a perfect level such as is the case with the present devices of that sort. This constitutes one of the greatest advantages of my construction since it greatly cheapens the cost of erection as well as obviates, altogether, readjustment of level necessary with the present type bf structures. Thisis due to the fact that instead of having the seal for the retort connections in the hydraulic main itself it is in a separate vessel. The bydrauhc main in my invention acts simp y as a receptacle for the liquids condensed from the gas. A considerable changeun level of the main-due to unequal expansion of the walls of stancedoes not in my invention affectthe in the slightest degree. The trough 2 bein placed in position, th gas-conduit 1 with t e spiders 5 attached is set in the troiigh 2,

and the flanges 7, 7", 7, 7, (and. as many more as may be new essary to correspond w th is made up of his invention relates-1o a hydraulic main for gas benches.

The object of my invention is to provide a hydraulic main and seal of a novel construction which permits of ready and easy cleaning.

To this end I have invented the hereinafter described device which, briefly, conof sheets of metal bent to an open curve on diii'erent radii, the larger forming a trough for the receptionof the condensation from the gas and the other being set inverted in liquor in the trough so that the inclosed portion above the liquor forms a gas conduit, connection through short connecting pipes with the gas space of each individual seal box.

This application is a division of my application Ser. No. 535,038, filed Dec. 27th,, 1909, in which latter application I have In the accompanying drawings, Figure 1 is a vertical cross-section through my l1ydraulic main and a seal box on, say, the line U-D of Fig. 2. Fig. 2 is a vertical section through a seal box on the line A-B of Fig.1 but showing the movable box or hell in its raised position and with coinmunication between the hydraulic main and its stand-pipe established. F i 3 is a vertical longitudinal part section t rough one end of the hydraulic main showing the liquor oil-take. I

1, is the gas conductin portion of my hydraulic main, while 2 refers to the trough or liquid conducting portion of the same. I The part 1 is made up, preferably, of sheets punched at suitable intervals on their niedia'l line with slightly elliptical holes, 3, preferably so shaped that when the sheets have been. bent to their finished shape the projection of the hole on a'horizontal plane will be substantially a circle. These sheets are then bent on a mandrel to the proper the number of retort connections) bolted or otherwise fasiened in'place on the holes 3. As shown,

obvious that preferred, be supported by or the frequent the gas benches, for inand such change would hydraulic main and, consequently, the number of seal boxes of course, not limited to the number shown, but they may be multiplied to any extent required.

As shown, each of the compartments. S,;,

8 8". has an opening (numbered 12. 12,

12, respectivcly,l in its bottom to which is attached one of the threaded flanges 13. Short pipes, numbered respectively 11. 11", 14', are screwed or otherwise fastened to these flanges so that their inner extremities are at the level in the respective boxes 8', S", 8, at which it is desired to carry the seal. Another set of pipes, 15, are similarly fastened into the respective may b individual departure from my iny seal boxes, 9, 1

8", 8, in such a position that they will communicate, respectively, 17", 17", 1.7. These pipes 15 are inserted farther into the respective boxes 8', S", 8", than the pipes 1st, l t, 14!. This is so that under no circumstances canlhe liquid of the seal overflow down the respective connections 18' into the retorts. The pipes l t, 14", 14, join the respective flanges 7', 7", 7, while the pipes 15 spective asccnsion.pipcs 1S. 1

The novable scaling bells 17', 17", 17', are simply open-bottomed boxes with transverse vertical partitions, numbered 19. having yoltes 20 fastened at the center of their respective tops. Brackets illfl terminating in cooperating slotted yoke hearings. numbered 22, are attached to the fixed boxes 8', 8", 8', or to any other suitable support. The respective operating levers '23 ot the several bells 17, 17". 17". are fulcrumed in the respective yoke l'icariugs 22", the fixed pins 24- resting in the open bearing formed by slots 25 in yokes 22'. ()no end o't levers 23 is attached to the yoke 20', ot' the movable bell of the seal with which it is cooperating. by one Of the pins 26' The other ends of the levers 23 have each attached to them a wire, rod or chain which permits them to be operated from the charging tloor of the retort house by the stokers. 'lhe balancing ot' the bells 17, 17", 17 and the levers 223' should be adjusted to suit the conditions of working. Under normal operating conditions it is usually desired. to maintain substantially atmospheric pressure in the retorts. \Vith my invention this condition can be secured with the maintenance of substantially the same pressure in the gas conduit 1, since there is free and open communication between the retort and the main join the re- 1 with the com-1 partmcnts 16 ot the several movable bells, i

1, and the only pressure difference between the two is that resulting from the friction between the gas and the walls of the passages. in the old type of hydraulic mains, it was necessary to maintain a vacuum in the main sutlicient to overcome the seal carried on the dip pipes. As stated, with my apparatus thisis not necessary. The bells 1T, 1T. 17" are so weighted that they will fall and close the connection .to the retort with which they are cooperating whenever the operating wires 27 are released. To permit o't thus balancing the bells or lifts of the seals some device should be provided such as the adjustable-counterweight28. A number of light removable plates, 31, are laid over the part of the trough 2 which is not covered by the part 1. The function of these covers, 31-, is simply to prevent the free circulation and escape of the gases evolved from the body of condensed liquor, 3), in part '2, ot' the main. The ends of both parts 2 and 1 are, of course, closed and suitable connections made to the tar well and tout mains. respectively.

The method of operating my invention is as follows --'lhe apparatus having been assemblcd. sul icient water or other liquid is t l l l l l pumped into sync-l 't'cspcctive partitions it into compartments 2 of the hydraulic inal trough 2 to seal the opening 4= in the anticlinal trough 1, of the main. Sutlicicnt liquid is also placed in the al boxes 8'. s. 8", to seal the compartot the respective lift-s 17, 17 17" of seals 9' l). 9", when the hits are in their lowest positions. The retorts ot the gas lumches are now chargedthe tires. of course. having been previously started, the benches brought up to the proper temperature conditions and whatever eX- hausting dcvice'is to be, used in connection with the main set il1 mcratiou. 'lhe bells or litts 1'7, 17'. 17. are raised by the operator on the charging lloor after the charging of thc retorts with which they are respectively cooperating. by hauling down and fastening the wires or l'tll s 27. The gas evolved from the charges in the rctorts ascends through the stand-puma to, into the respective conuia-rluicnts 16', passes under the 3?), down through the corresponding one of 'the connections 1-1. 1- ll. into the gas conduit l of the hydraulic main. lhthlt this it passes, under the inllucnce ol' the (3(- hauslcr through the pipe ll. to the foul main and the usual condensing and puritying apparatus. "lhe' tarry liquid which condenses from the gas collects intne seal boxes 8', 8", 8', and linallv ovet'll n's through the connections it. it. 14. into the part main, from which it passes through a suitable .overlhnv 35, at one 7 end, to the tar well or other reservoir.

When the charges in any set of retorts are fully carbonized and the l'CtOl'lo are about ne he opened for the "purpose of" iling the tion 'Wll'llOlli] changing ,eirie eoo dnewing the operating Wires, 2?, 0i such retorts are u eleesed, When'the corresponding lifts drop, shutting ofi communcotion between the I ftonts undthe h draulic main. ll hen the retests "have been charged the Wires-2 regain-hauled down endztosiened, again put *retorts in free and mnobstructed eoornuuzmcation with the hydraulic main.

hn orderito clean the seal lcolxes 8Z6, or :theconnections 14, 14c", l lit is only necessary to lift the correspondinghells out of theireeel boxes and to insert the cleaning toolin the said boxes or pipes as the case may be. Since it is the pructice to carry practically atmospheric pressure in the h draulic :Inain, this momentary exposure the inlet end of the connections 14:, 1 I let' to theatniosphere will not result in any serious influx of air to the rue-in, The cleaning of connections 14', 14, 14" should, of course, he performed at such 'times as the retorts h V8 bee drawn. I Should it :he desired to clean the stendpipes ISfronathe top, also, by plac ing a suitable loose cap over the end of the correspondinghydraulic main co .nection so that the lower edge of the c in the liquid this stand pipe isc sealed. When the pipes the caps are removed and 17" replaced, when the s operative condition. 18

nnniersed OInPlBlJBl) have been cleaned the lifts l7, '7 eels are again in The ascension pipes will usually, however, be cleaned by the insertion of van auger from the inouthpieee of the retort in the customary manner. While this is heingdone, the corresponding lift should, of course, be down to' seal the tion of the retort with the hydraulicapi To clean an 01 draulic main it is one of the covers insert a suitable only necessary to remove 81 at the proper place and l )stru'ctio-n from the hyi l scraper, oy means of which e obstructing ineterial may he scraped out of the main. It is to be noted that the method by which =1 support t leaves the lower portion of part 2 free and unobstructed.

It is obvious that Imay, if I prefer, make the synclinal main, 2, in the shape of straightsided trough instead of giving it a curved section as shown, and that l Indy" materially modify many of my inveir I the mode of opereis which I secure. For iu- I o iueins l and i? may icing nuide from sheet in The eon. "'ruction she W11. however, is the or which I o, our most advantageous 2111.11 4 4 preferred form my inrei'ition.

While I have only shown the design of apparatus which deem prefer ihlc, it is clear that I may, if prefer, inor the size of my individual seal bones and arhe gas main 1, the syncliual i i-on or the resul slu the tw u oi? l l i i anthem 1.

fiilcr'lj "Ample slterution in apparatus .s'hich 1 herein sho hemadehy any 1e skilled 1; A hydraulic main clinel end synclinel losing supported Within more conduits connec trough "with .a source duit :conductiug entic'linel trough, an 'with said synclinul army -theri-Ji'roi'n doused from said gas.

2. A hydraulic main comprising in com binetion an anticlinzrl trough adopted :to furnish passage for gas, and a synolinal trough adapted to receive iiquid condcnsed from the gas passing through said untiolinul trough, said anticlinal trough lacing supported in said synclinal trough in such manner that the lower edges of the'u'ells of said unticlinal trough are inunersed in the liquid held by seid-synoliualtrough, whereby the interior of said anticlinal. trough is sealed against the atmosphere-one or more passages connecting the said anticlinal trough with a source ii -gas, one or more passages for discharging gas from said antiolinel trough, and one or .more conduits for discharging froiu said synclinal trough the surplus liquid condensed from the gas.

3. A hydraulic main comprising in combination an anticlinol trough adapted to form a conduit for gas, and e synclinal trough adapted to receive liquid condensed comprising an antitrough, the former the latter, one or tiu'gthe said uuti'clinai of gas, o discharge couaway from -St1lfl u conduit comieoted trough for conducting the surplus liquid -con- .rom gas passing through soul unti'clinal trough and having a. length greater than the length-0f said auticlinal trough, said entielinal trough being supported in said synclinalwt-rough in such manner that thelower edges of the walls of said synclinal trough are immersed in liquid held by said synclin-il trough, whereby the interior of said 4 ICllIltil trough is sealed, suitable end members closing both ends of both of said il'Gl'lgllS, mud suitable covers covering the included lurlween the walls of said syn- .al trough. and the Walls of said anticiinul tron h, one or more conduits connecting the so ugh with one or more g rs, one or more coud'ui away from said enticlinal trough, and an overflow conduit located in that portion of'said synclinal rough beyond, the end of siid anticlinal or 1d enticuual tro as generating chainhe for conducting gas clinal trough being shorter than'said synclinal trough and supported within said synclinal trough, one or more conduits connecting the said anticlinal trough with one or more seal boxes, each of said seal boxes being connected with a gas generating chamber.

5. A hydraulic main which comprises in combination an anticlinal trough and a synclinal trough, each formed from sheet metal bent to an appropriate shape, the said anti clinal trough being shorter than said synclinal trough and supported within said synclinal trough, one or more passages connecting the said anticlinal trough with one or more seal boxes, each of said seal boxes being connected with a gas generating chamber.

6. A hydraulic main comprising in combination an anticlinal trough and a synclinal trough, each formed from sheet metal bent to the appropriate shape, the said anticlinal trough being shorter than the said synclinal trou' h and supported within said synclinal trough, a plurality of spiders supporting said anticlinal trough, one or more conduits connecting the said anticlinal trough with one or more seal boxes, each of said seal boxes being in communication with one or more stand-pipes of a gas bench, a conduit communicating with said anticlinal trough to conduct away gas therefrom, and an overflow conduit communicating with a seal at one end of said synclinal trough for conducting away condensed liquid therefrom.

7. A hydraulic main comprising in combination an anticlinal trough and a synclinal trough, each formed to the appropriate shape, the said anticlinaltrough being shorter than the said synclinal trough, a plurality of supporting members supporting the said auticlinai trough within said synclinal trough, a conduit for withdrawing gas from said anticlinal trough, and an overflow conduit communicating with that portion of said synclinal trough without the said anticlinal trough.

8. A hydraulic main comprising in com bination an anticlinal trough and a synclinal trough, each formed from sheet metal bent to the appropriate shape, the said anticlinal trough being shorter than said synclinal trough and supported within said synclinal trough, a plurailty of supporting and spacing members supporting said anticlinal trough and spacing the same away from the walls of said synclinal trough in such manner as to permit of access to said synclinal trough for the removal of obstructive accretions therefrom, one or more gas conduits communicating with said anticlinal trough, and an overflow conduit cominuni'cating with that portion of said synclinal trough between corresponding ends of the two troughs.

9. As an article of manufacture, a hydraulic main comprising in combination an anticlinal trough and a synclinal trough, both formed from sheet metal bent to the appropriate shape, the said anticlinal trough being supported in said synclinal trough, said synclinal trough being adapted to re- 'tain afsufiicient body of liquid toimmerse and seal the edges of said ant-iclinal trough.

10. As an article of manutacture a hydraulic main comprising in combination an anticlinal trough and a synclinal trough, each formed from sheet metal bent to the appropriate shape, the said anticliual trough being shorter than said synclinal trough and supported in said synclinal trough, said synclinal trough being constructed to retain a v 

